Saw filing apparatus



Patented Sept. l2, 1939 UNITED STATES PATENT OFFICE envases SAW FILINGAPPARATUS Bernd J.

Dirks, Prince Georges County, Md.

Application February 4, 1939, Serial No. 254,542?v 3 Claims. (Cl.'J6-31) (Granted under the act of amended April 30, 1928;

1883, as amended by the act o1 April 30, 1928 (ch. 460, 45 Stat. L.,467).

This invention relates to 'a device for facilitating the hand filing ofsaws.

One of the inaccuracies resulting from the Illing of saws by handformity in their height and spacing.

'Ihe invention has for its ob`ject to prevent elevation of the same, andFig. 3 is an end elevation of the same. Like numerals of referenceindicate the same axis and swing in a horizontal plane with respectMarch is, 1188s,l as 37o o. G. T57

tothe radius rod 5. In lieu of this simple form of the radius rod withthe le any is prevented by the radius rod, holding of the angle of thele entire filing operation is assured.

In operation, the height of the tooth line of tal plane of the radiusrod.

When the ling operationv is one en d of the saw, the radius rod of thebracket is applied to the saw teeth in the tion. As the radius rod 5 5freely slides 3 and the ille usual ling moswings in the eye 4 in the sawteeth is prevented.`

Having thus fully described the invention, I

do not wish to be understood as Hunting myself to the scope of theappended claims.

I claim. 1. A device for facilitating the hand ling of saws, whichincludes a bracket having an eye thereon, a radius rod pivoted in saideye and rotatable thereimand freely slidable in said eye in a directionlongitudinal of the saw, the free commenced at pivotal connection to theiile movement oi' the ofthe saw, and unrestricted movement oi the illeon a transverse horizontal axis provided by the pivoted radius rod andunrestricted movement of the ille on a transverse vertical axis providedlgdthe connection between the nie and the radius Y' the hand illinsmeans for facilitating of the radius rod in a direction the saw, thefree end of the radius rod being bent downwardly at right angles theretofor to restrain the nie from rotating on its longitudinal axis. but topermit the file to freely pivot on a vertical transverse axis, the wholearranged whereby the radius rod being longitudinally slidable permitsfree file longitudinally oi the saw, and unrestricted movement ot theille on a transtransverse the radius rod being longi-l verse horizontalaxis provided bythe pivoted radius rod and unrestricted movement of theille on a transverse vertical axis provided by the' which includes aradius rod, means for establishing a rotating Aand pivoting connectionofthe radius rod and also a sliding connection o! the radius rod in 'adirection longitudinally of the saw and means tor effecting a pivotalconnection between the Afree end of the radius rod and a the ille tofreely pivot on a vertical transverse axis but to restrain the ille fromrotating on -its longitudinal ranged whereby the radius dinally slidablepermits iree movementoi the file longitudinally of the saw andunrestricted movement o! the file ona transverse horizontal axisprovided by the pivoted radius rod and unrestricted movement of the tlieon a transverse vertical axis provided by the connection between theille and the radius rod.

, BERNDLDIRKS.

